Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Long-axis MR images (left) of the left ventricle with magnified view (right) showing hypointense lesions (arrow) caused by iron oxide-labeled mesenchymal stem cells injected under x-ray fluoroscopy acquired within 24 hours (top) and 1 week (bottom) of injection. Expansion of the hypointense region at 1 week is indicative of local migration of the stem cells. Adapted from Kraitchman et al (38), which contains expanded contiguous image data and histological validation.
